Richter scale

(geology 地质) scale from 0 to 8 for measuring the intensity of earthquakes 里克特震级, 里氏震级（测定地震强度的标度, 从 0 到 8 级）.

rhythm, rhythm and blues, rhythm method, rhythmic, rhythmically, RI, rib, rib-cage, rib-tickling, ribald, ribaldry, ribbon, ribbon development, riboflavin, rice, rice-paper, rich, riches, richly, richness, rick, rickets, rickety, rickshaw, ricochet, rid, riddance, ridden, riddle, ride, ride down, ride off, ride on, ride over, rider, ridge, ridge-pole, ridge-tile, ridgeway, ridicule,